Internet – How it Works?

The internet simply is a global network of interconnected computers, which is available to everyone. These interconnected computers function by sending data via a special form of packet switching which is called the IP or the internet protocol. Internet is a public, cooperative, and self-sustaining service available to millions of people globally. The Net provides a large variety of information resources and services, like the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to allow for email.

The Internet doesn’t have central governance either in technological implementation or policies for access and usage; each network sets its own standards. Only the overreaching definitions of the 2 primary name spaces online, the Internet Protocol address space and the Domain Name System, are directed by a maintainer organization, the Internet Corporation for Assigned Names and Numbers (ICANN).

How Internet Works

Each and every equipment which connects to the net requires an Internet Protocol address that is dynamically allocated by Internet Assigned Number Authority (IANA). Each country has its own internet regulatory authority which synchronizes the IP address assignment with the IANA. As soon as a device connects to the internet, the Internet Service Provider or the ISP assigns an IP address which becomes the identity of the device and facilitates unhindered data transfer from all over the world. Apart from the devices, web sites also have IP addresses that are decoded into meaningful words making use of the Domain Name System or the DNS.

To view a web page in your browser, the following sequence takes place:

• You either type an address (URL) into the “Address Bar” of your browser or click on a hyperlink.
• The web browser sends a request to the Internet service provider (ISP) server requesting the page.
• The ISP looks in a large database of internet addresses and locates the exact host server that houses the site involved, after that it sends that host server a request for the page.
• The server transmits the requested page to your ISP.
• The ISP delivers the page to your internet browser and it is shown on your monitor.

Q. What is Internet ? Explain how does it work ?
Q. Explain how Internet works.